Mold for a continuous feed printing strip material caster



Sept. 2, 1958 A. J. SITTON 2,849,767

MOLD FOR A CONTINUOUS FEED PRINTING STRIP MATERIAL CASTER Original Filed May 20,1952

INVENT OR ANDREW J. SITTON ATTORNEY MOLD FOR -A"CON-T INUOUS FEED PRINTING "CASTER Andrew J. Sitton,Daytona-Beach Fla assignor to Sitton Industries, Inc., Lakel'and, Fla, a corporation of Florida riginal application May 20, 1 952, Serial 1 10.288332- Divided andthi'ssapplication February'l, 19.55, Serial -.No.'48'7,729

4' Claims. (Cl. 22-'57 .2)

The present invention 'Jrel'ates. to:a mold for a continuous feed 1 printing' strip material caster and is a "divisional "application of the application 1 Serial N'o. 288.932 filed on May 20, 1:952, byAndrew J. rSitton .ffor a Continuous -Feed PrintingStrip-TMaterial-Caster.

:An objectof the present invention is=to provide an im- PIOVEtd StIlp material casterlin which the slugs'are formed with recesses on the opposite side faces I thereof to "reduce theweight of the slugs and to effect 'a saving in" the amount ofrmaterial being used.

further objeet'of :the :presentiinvention is to I provide armol'd capable of producing recessed slugs as described in thepreceding paragraph.

- Th'e-'Ipresent invention also aimsito:'provid'e atdevice.:of lthis :cha'racter which :is adapted :to be :an :addition to or attachmentfora:line castingma'chine.

Thelpres'ent"invention aims' toprovideia mold in which slugs-of various sizes. may: beimade.

- The present :invention also aims "to provide a 'm'old tin which 1-s1ugs may be made "having substantially fiat sides withmnrecessedisurfaces.

With Ithe :foregoing :and :other objects in view, :the in- 'vention will be hereinafter "more fully described and more particularly pointed outlinithe-appended claims.

In the drawings in which the same parts are denoted by the sameireferen'ce numerals -throughoutthe several views,

Figure l is an exploded perspective view of .themold with parts Kin-section and with parts broken away,

Figure? "is a sectionalview taken on the line 2---2 oflFig'ure' 1, and

Figure 3lis,a view similar to FigureZZ showing modified forms of spacers.

Referring more particularly to the drawings, A generally indicates the mold which comprises locking members 41 at each end of the mold which are provided with cooperating recesses 40 to form an inlet opening at one end of the mold and an outlet opening at the opposite end of the mold. In addition to the locking members 41 of the mold comprises two half sections 42, a pair of side spacers 43, a top spacer 44, a pair of binding strips 45, wing bolts 46, nuts 47 and retaining screws 48. Each half section 42 has a longitudinally extending dovetail groove 49 disposed intermediate its upper and lower face and a longitudinally extending recess 50 spaced from and above the dovetail groove 49. Each recess 50 has substantially horizontally extending upper and lower walls and an upwardly and inwardly inclined side wall. Inwardly of the lower portion of the dovetail groove 49 each half section of the mold has a longitudinally extending ledge 51.

The intermediate portion of each locking member 41 is wider than the intermediate portion of the half sections 42 so that the intermediate portions of the members will overlie the dovetail groove when the parts are in assembled relation. The upper lug 52 formed by the provision of the recess 40 in each locking member 41 will United States Patent Patented Sept. 2, 1958 overlie the recess 50 ofits half section and the upper surface'of'the lower lug 53 of each member 41'Will be coextensive with the upper face of its'ledge 51. The formation-"of the'dovetail grooves '49 and :the recesses 50 provide an intermediate space "between the half sections and this space'is maintained when thehalf sections are assembled by the opposed facesoftheungrooved portionsof the half-se'e'tions-above and below-the grooves and recesses abutting one another. 'One of the half sections+42-is provided with a longitudinally extending tongue .orrib 5'4 adjacent its upper and lower face and the other half section has-correspondingly shaped and located groves SS fOr recei-Vingthe ribs 54.

Eaehside spacer 43 'is elongated-and has a dovetail portion 43a adaptedto be received by thedovetail groove of oneofithe halfisectioris of 'the mold' and-a base portion 43b. The binding strips 45 'are of elongatedfla't shape andiare-"adapted' t'o 'be :received by the dovetail grooves 49 of the mold halflseotions' in order'to tightly bind' the'side spacers "43in position. A F series of side spacers'may be provided 'having base portions 43b of different thicknesses to determine the width ofthe spa'ce 56 between 'the'bases of oppos'ed side spacers. This space56 determines the thickness of 'th'efinished slug. The top spacer 44 is iel'ongated :anddhas its =o'pposite sides inclined upwardly and inwardly :and its upper and lower faces fiat toconform to the'sh'a'pe' 'ofithe recesses '50.

The upper and lower faces'of each half section 42 adjacent its opposite ends are providedwith cooperating ssockets :57 ifori receiving i the wing bolts 46 r each of which lnay comprise an oblongshaped body portion 46a and a screw :threaded' shank 46b "for receiving the nuts 47. llihroughzopeniugwto'c -are formed in the body portion of eachwing :bolt iadjace'nt the 1 opposite I ends thereof. Inawardly of the sockets.57 the mold half sections are provided'with screw '-threa'ded--recesses 58--which open into stlre'zsocketsf57 'andiare inalignment with through openings :59 andtotliformed. in :the; moldhalf sections outwardly of tthersokets'l57 and'ii'nithe locking members '41 when the partszare inzassembled relation. The retainingscrews 48 :extendtthxiough the aligned openings "59 and 60 and have their zscrewthreaded end portions48a received :by the threa'ded'irecesses .58 of the mold half sections. The heads 48b of ttheiscrewsf48 :engage the outer faces of the locking members-'41 'Ito.- retain the locking members in position.

.Tlresconventional well 61 1 for indicating that the mixture in the mold A is being maintained at thepropertemcperaturesiaslitntoves through the mold m ay be formed by cutting away the intermediate inner edge portion of the upper face of each mold half section. The rear end portion of the ledges 51 of the mold sections are inclined upwardly and rearwardly towards the mold inlet.

In Figure 3 of the drawings a modified form of side spacer 43 is shown in which the base portion 43b of each spacer is provided with longitudinally extending ribs 153. It Will be noted that the ribs of one spacer are vertically staggered with respect to the ribs on the other spacer so that when this type of spacer is used the finished slug will have recesses formed on the opposite sides thereof which are vertically staggered with respect to each other. The provision of these recesses will effect a saving in the amount of material thereby reducing the cost of production and the amount of material necessary to be kept tied up. The formation of the recesses will also reduce the weight of each slug from about five percent to thirty percent. This reduction of weight is very important since each slug comprises about eighty-five percent lead which is extremely heavy and it is necessary for a workman to handle a large number of these slugs at one time. Moreover, the provision of the recesses will insure against the possibility of Work-ups during the printing operations.

As illustrated in Figure 3 of the drawings, the top spacer may be provided with a longitudinally substantially centrally disposed groove 44a in its lower face for forming a rib on the upper face of the sing. The grooved top spacer will be used for making a rule slug and top spacers having grooves 44a of different Widths may be provided. An ungroovedtop spacer as shown in Figure 2 of the drawings may be used with the side spacers of Figure 3 if desired.

The mold A may be disassembled for the purpose of inserting difierent sized or shaped side spacers 43 and top spacer 44 by loosening the retaining screws 48 and the nuts 47 and removing the outermost locking members 41 adjacent to outlet of the mold. After the desired spacers have been inserted in the mold the mold will be reassembled and it will be noted that the inner ends of the spacers 43 and 44'and the binding strips 45 will engage the overlying portions of the locking members 41 which are adjacent to the inlet end of the mold to limit their insertion into the mold. After the locking members at the outlet end of the mold have been secured in position they will engage the outer ends of the spacers and binding strips to prevent accidental movement of the spacers and binding strips from the mold.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the following claims.

What I claim is:

1. A mold for receiving a molten metal mixture from a pot of a line-casting machine or the like for forming a strip material to be used as slugs in printing operations comprising two mold half sections each having a dovetail groove, said sections having cut away portions cooperating with one another to provide a strip material receiving space, side spacers having dovetail portions adapted to be received by said dovetail grooves and having base portions for reception by and partially filling said strip material receiving space, binding strips adapted to be received by said dovetail grooves for locking said side spacers in said dovetail grooves, each of said sections having a longitudinally extending groove, a top spacer having its opposite edge portions received by said longitudinal grooves and engaging the upper edges of the base portions of said side spacers, means for detachably securing said mold sections together, and locking members for locking said spacers and binding strips within said mold sections.

2. A mold as claimed in claim 1 characterized by the fact that the opposed faces of the base portions of said side spacers are provided with longitudinally extending ribs, the ribs of one side spacer being vertically ar ranged in staggered relation to the ribs of the other side spacer so that vertically staggered recesses are formed on opposite sides of the slug to reduce the weight of the slug without materially reducing its strength.

3. A mold as claimed in claim 2 characterized by the fact that a set of top spacers is provided each having a longitudinally extending groove having a Width different from that of each of the other top spacers.

4. A mold for receiving a molten metal mixture from a pot of a line-casting machine or the like for forming a strip material to be used as slugs in printing operations comprising two mold half sections each having a dove tail groove, said sections having cut away portions cooperating with one another to provide a strip material receiving space, side spacers having dovetail portions adapted to be received by said dovetail grooves and having base portions for reception by and partially filling said strip material receiving space, binding strips adapted to be received by said dovetail grooves for locking said side spacers in said dovetail grooves, each of said sections having a longitudinally extending groove, 21 top spacer having its opposite edge portions received by said longitudinal grooves and engaging the upper edges of the base portions of said side spacers, means for detachably securing said mold sections together comprising wing bolts having a screw threaded shank and a body portion, said mold half sections having cooperating sockets adjacent each end thereof for receiving the body portion of one of said bolts, a nut adapted to be received by the threaded shank of each bolt, each bolt having a through opening formed therein adjacent each of its ends, each mold section having a screw threaded recess formed therein inwardly of each socket and opening thereinto, each mold section having a through opening formed therein outwardly of each of said sockets and in alignment with the openings in said bolts and with said screw threaded recesses, and retaining screws extending through said aligned openings and having their screw threaded end portions received by said screw threaded recesses.

References Cited in the file of this patent UNITED STATES PATENTS 1,222,415 Knight Apr. 10, 1917 1,946,488 Dahl Feb. 13, 1934 2,007,301 Lemieux July 9, 1935 2,332,856 Kalajian Oct. 26, 1943 2,342,769 Suchann Feb. 29, 1944 2,428,658 Falk et a1. Oct. 7, 1947 

